Improvement in middlings-purifiers



A. GREENLE'AF.

MIDDLIITGS-PURIFIER.

ATTORNEYS VIITNESSE8:Y. d W J "NI'I'ED STATES ALBERT GREENLEAF, OFKINGSTON, WISOON SIN.

'IMPROVEMENT' IN ,MIDDLINGS-PURIFIE RS.

$pecification forming part of Letters Patent No. 174,232, dated February"29, 1876 application filed December 18, 1875.

To all whom it may concern A Be it known that I, ALBERT GREENLEAF,

- of Kingstomin the county of Green Lake and verse-section, taken on theline yy of Fig. 1.

Similar letters of reference indicate corresponding parts.

A is a shoe, onto Which the middlings fall to be fedinto the machine byfalling in a wide, thin sheet onto the chute B. The shoe is shaken bythe cam D. From the,. chute B they pass'into the vertical passage Ethrough the side F, where they are subjected to a cur rent of air by thesuction fan G, which discharges the light impurities through the spoutH. From passage E the middlings fall upon sieve 1, OF from which thelight matters are lifted by a blast through spout P fromfan J, to bedelivered on the bran-spout K, while the fine middlings fall throughonto the chute L, and are delivered onto thesieve M under thesuction-spout N, through which the light matters are delivered by thesuction-fan 0. On the sieve M the middlings are also subject to a lightblast from fan .J, through spout P, which takes the light and coarsematters off into thespout Q. The chute R under sieve M delivers into thespout S, through which the heavier matters fall from spout N into thereceptacle for fine middlings. arranged in a vertical shaking frame T,which is operated by the cam U.-

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- The combination, with sieves M and I, of the fans G,J, and O and the spouts E, P, N, and S, substantially as specified.

' ALBERT GREENLEAF.

Witnesses:

M. W. STEVENS, ANNA STEVENS.

The sieves are

